Win7 simple way to prevent viruses

First, open “ Control Panel - Hardware and Sound - Device Manager, expand the Universal Serial Bus controller list in Device Manager, find the USB mass storage device, open the properties, select the details in the navigation bar The information, copied out of its hardware ID, is also saved in Notepad.

Second, plug the USB device you use frequently into the computer, and after the device enters the normal running state, “Open the control panel hardware and sound device and printer”, all the devices can be seen in this window.

Right-click on a USB device, select Properties, select “Hardware-Properties" in the window to open, select “details">, select “hardware ID item”, which will be the ID code Copy and save to Notepad.

Third, open the Run dialog box, enter gpedit.msc, then the Group Policy window will pop up, expand & ldquo; Computer Configuration - Administrative Templates - System - Device Installation - Device Installation Restrictions, open "ld"; Allow installation of devices that match the following device IDs, and click on the Show button to paste the device ID previously saved in Notepad.

Finally, select to disable the installation of devices not described by other policy settings, select Enabled in the pop-up window, select OK and exit.

The above group policy settings prohibit the operation of the USB interface, which can ensure the security of the Windows 7 system and prevent unnecessary intrusion of the USB virus.